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/*=========================================================================
Program: Visualization Toolkit
Module: vtkMultiPieceDataSet.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/**
* @class vtkMultiPieceDataSet
* @brief composite dataset to encapsulates pieces of
* dataset.
*
* A vtkMultiPieceDataSet dataset groups multiple data pieces together.
* For example, say that a simulation broke a volume into 16 piece so that
* each piece can be processed with 1 process in parallel. We want to load
* this volume in a visualization cluster of 4 nodes. Each node will get 4
* pieces, not necessarily forming a whole rectangular piece. In this case,
* it is not possible to append the 4 pieces together into a vtkImageData.
* In this case, these 4 pieces can be collected together using a
* vtkMultiPieceDataSet.
* Note that vtkMultiPieceDataSet is intended to be included in other composite
* datasets eg. vtkMultiBlockDataSet, vtkHierarchicalBoxDataSet. Hence the lack
* of algorithms producting vtkMultiPieceDataSet.
*/
#ifndef vtkMultiPieceDataSet_h
#define vtkMultiPieceDataSet_h
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkDataObjectTree.h"
class vtkDataSet;
class VTKCOMMONDATAMODEL_EXPORT vtkMultiPieceDataSet : public vtkDataObjectTree
{
public:
static vtkMultiPieceDataSet* New();
vtkTypeMacro(vtkMultiPieceDataSet, vtkDataObjectTree);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
/**
* Return class name of data type (see vtkType.h for
* definitions).
*/
int GetDataObjectType() VTK_OVERRIDE {return VTK_MULTIPIECE_DATA_SET;}
/**
* Set the number of pieces. This will cause allocation if the new number of
* pieces is greater than the current size. All new pieces are initialized to
* null.
*/
void SetNumberOfPieces(unsigned int numpieces);
/**
* Returns the number of pieces.
*/
unsigned int GetNumberOfPieces();
//@{
/**
* Returns the piece at the given index.
*/
vtkDataSet* GetPiece(unsigned int pieceno);
vtkDataObject* GetPieceAsDataObject(unsigned int pieceno);
//@}
/**
* Sets the data object as the given piece. The total number of pieces will
* be resized to fit the requested piece no.
*/
void SetPiece(unsigned int pieceno, vtkDataObject* piece);
/**
* Returns true if meta-data is available for a given piece.
*/
int HasMetaData(unsigned int piece)
{ return this->Superclass::HasChildMetaData(piece); }
/**
* Returns the meta-data for the piece. If none is already present, a new
* vtkInformation object will be allocated. Use HasMetaData to avoid
* allocating vtkInformation objects.
*/
vtkInformation* GetMetaData(unsigned int pieceno)
{ return this->Superclass::GetChildMetaData(pieceno); }
//@{
/**
* Retrieve an instance of this class from an information object.
*/
static vtkMultiPieceDataSet* GetData(vtkInformation* info);
static vtkMultiPieceDataSet* GetData(vtkInformationVector* v, int i=0);
//@}
/**
* Unhiding superclass method.
*/
vtkInformation* GetMetaData(vtkCompositeDataIterator* iter) VTK_OVERRIDE
{ return this->Superclass::GetMetaData(iter); }
/**
* Unhiding superclass method.
*/
int HasMetaData(vtkCompositeDataIterator* iter) VTK_OVERRIDE
{ return this->Superclass::HasMetaData(iter); }
protected:
vtkMultiPieceDataSet();
~vtkMultiPieceDataSet() VTK_OVERRIDE;
private:
vtkMultiPieceDataSet(const vtkMultiPieceDataSet&) VTK_DELETE_FUNCTION;
void operator=(const vtkMultiPieceDataSet&) VTK_DELETE_FUNCTION;
};
#endif
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